Table-tilting mechanism



CLE. THOMPSON. TABLE mum; MECHANISM.

APPLICATION IILED MAY 5' 1919.

PatentedDec. 6, 1921.

2 SHEETS-SH? l- C. E. THOMPSON. TABLE TILTING MECHANISM. urucmion FILEDMAY15 ,.I9I9. 1,399,091. Patented Dec. 6, 1921.

2 SHE ETS-SHEET 2.

CHARLES E. THOMPSON, DIE-DENVER. COLORADQ'ASSIGNGR r THE MINE &sMn'LrnR" SUPPLY cor/manner DENVER, COLORADO, e conroaeriou'or COLORADO.

TABLETILTING MECHANISM. i

Specification of 7 new and useful Improvements in Table? 'liltingMechanism, oi: which the following" is a specification.

This invention relates to an improvement in table tilting mechanism. p

This improved tilting device is a simple and unique feature. By thisarrangement; it is possible to do awaywith all wedges, cams, tiltingyokes etc;, such as have been previously used inoth'er concentratortables; The draw-bar employed is'so designed as to enable the deck to betilted without putting any side strain on the yoke'an'd working parts ofthe head-motion. The new design makes it possible to tilt the deck bymeans connected with the long deck draw-bar, tube or pipe.

With these objects in View, this present inventioncomprises a draw-barsecured to the concentrator deck or table, in connection with a suitablesupport for the table or deck, and means for rocking the drawbar axiallyto tilt the table and for securing it in its tilted position.

In the accompanying drawings Figure 1 is a view ofthe concentrator tablein side elevation;

Fig. 2 is a section on line.A-A of Fig. 1;

Fig. 3 is an end view showing the tilting mechanism;

Fig. 4: is a plan view of the draw-bar and connected parts Fig. 5 is aview of the same in elevation;

Fig. 5 is an end view of the same;

Fig. '6 is an endview of the tilting mechanism corresponding somewhat toFig. 3 but on an enlarged scale; 7

Fig. 7 is an enlarged sectional fragmentary view of the draw-bar and itsconnections. f

Thefnunieral 1 represents a base, and the main frameof the machinecomprises the longitudinal channel-iron sills 2 bolted to the base, andthe cross channel-iron beams 3 bolted to the upper edges of the sills 2in pairs, (as shown in Fig. 1) and between which are preferably locatedthe rockerbearings R, upon which the deck-or table is supported. 7

The numeral 4 represents the deck ribs Letters E'atent.

Patented Dec. 6, 1921.

ielsfsefiai No. 297,198. r on which the deck ortable 5 is mounted.

The long deck draw-bar, tube or pipe 6e21- tends nearly the lengthof thedeck. This draw-bar 6 lies in acentral positionunder' the deck of thetable, and is seourelyate,

tached theretobydeck-ribs 7,. Also attachedto this long draw-bar 6 aretube brackets 8,"which bolt directly .to the rockerplate 9, which isalso 'centrally placed and supported by the main table frame orfoundation. At the opposite end onthe long draw-bar 6 "from the headmotion, a tiltinge arm 10 is securely attached by pin or bolt. The endoithis arm 10 its loosely into a pocket15 in slide-block 11, whichlatter'is made to slide back and forth on a slide-bar 1'2 securelybolted to the sills 2 (as shown in Fi 6) all of which is accomplishedby" turningthe handwheel 13 on the threaded rod 14, the threads of whichturnin a threaded hole in the slide-block, thus moving the lattertransversely of the bed on the slide-rod 12, thereby moving thetiltingarm 10 to the right or left, and with it rockingthe draw-baraxially, which in turn tilts the deck or table to the requiredinclination and holds it there. The pocket 15 in the slide-block affordsclearance for the tilting-arm to play back and forth asithe able isreciprocated by the head-motion.

The draw-bar 6 is'so' designed ElDLlCOilstructed that it enables thedeck or table to be tilted without putting any side strain on the yokeor other working parts of the headmotion. And this is accomplished bymeans of a threaded steel rod 16 one end of which has right-hand threads17 .(see Fig.

7 and turns as the table tilts in the brass sleeve nut 18. The other endof the steel rod 16 is provided with a left-hand thread 19 and is lockedby two steel nuts 20 and 21, the nut 21 being internally threaded forconnection to the long deck draw-bar, pipe or tube 6. The brass sleevenut 18 is also threaded toreceive a steel hexagonal nut 22,-which locksthe brass sleeve nut 18 securely to the thrust-yoke 23 on the headmotion. So while the draw-bar is rigidly permit the deck to be tilted,Without putting any strain whatever on the head motion and its parts,and this improved tilting mechanism admits of the tilting of the deckwithout the use of cams, wedges, tiltingyokes,

or other similar devices. 7 V i I claim:

1. The combination with a main frame, a

means for adjusting the sliding-block laterally to tilt the arm and rockthe draw-bar, said means comprising a threaded rod, the threads of whichturn in athreaded hole in the slide block, and when turned cause thelatter to slide in one direction or the other to apply lateral pressureto the tilting-arm to tilt the latter and rock and adjust the draw-bar.

2. The combination with a draw-bar which consists in the main ofal-pipe, arod, means for'securing the pipe and rod together, the rodhaving right and left threads at its opposite ends, a sleeve-nut inwhich one of the threaded ends of the rod is swiveled, and means for.securing the sleeve-nut to the thrust-yoke of the head motion of theconcentrator, of tilting-mechanism comprising a tilting arm secured tothe pipe, a slide and having a pocket therein which receives and formsclearance for the tilting-arm and permits the latter to slide with thereciprocation of the draw-bar, and a threaded rod rotatably mounted inthe main frame or bed and having a hand-wheel thereon, the

7 thread of which engage and operate in coni nection with a threadedhole in the slideblock, wherebytomove the latter back and forth on theslide-bar when the rod isturned 40 bar, a slide-block mounted on theslide bar a to rock the draw-bar axially. and tilt the l deck or tableto the desired inclination.

In testimony whereof I afiixmy signature.

CHARLES E.THO1\IPSON

